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June 11, 1929. L; R, NEL ON 1.716.733

LAWN SPRINKLER Filed Feb. 25, 192? gwuemtoz Z. ENE/5012,

Patented June 11, 1929.

LEWEN Itv NELSGN, OF PEORIA, ILLINOIS.

LAWN SPRIIil'KLER.

Application filed February 25, 1927.

This invention relates to lawn sprinklers, being directed particularly to the spray nozzle type.

While adapted for general use as a lawn sprinkler the device herein to be described is particularly fitted tor irrigating large areas where a number of them are connected with a piping system buried below groiiind as is customary in lVestern Coast States.

()bj cts of the invention are to provide a spray nozzle 01" a very efficient form in the matter of wide and even water distribution; a. nozzle that can. be quite easily adjusted for distance of water-throw; and one not likely to cause trouble or require attention after being set for use.

Another object is to provide a spray nozzle of a type of construction that will admit of its being made almost entirely of formed sheet metal through stamping operations whereby a large production at low cost is possible, and where accuracy of manufacture can be maintained so that the parts can be readily interchanged to the end that rcvlaeement of parts is rendered easy.

For the ready and complete understanding of the structure of my spray nozzle the accompanying drawing has been provided wherein Figure 1 is a side elevation of a spray nozzle in which. the invention is involved.

Figure l is a section, in perspective, of part oi the body of the device taken on line 1-1f, Figure 1.

Figure 2 shows the spray nozzle as see at its under side.

Figure 3 is a vertical section of the device in its completely assembled form.

Figure .4: is a vertical section of portions of certain parts shown in Figure 3.

Figure 5 a plan of a diaphragm shown in Figures 3 and 4, and.

Figure 6 is a transverse section of part oi s l diaphragm.

\l ith the end in view of producing a spray nozzle the par s of which can be readily interchanged or replacements easily made, to

ether with extreme accuracy of manufacire, I prefer to produce the parts of the ozzle by stamping them from sheet metal. In the drawing, therefore, the character 1 designates as a whole the main body of my nozzle which includes a tubular internally threaded neck 2 adapted to be screwed upon a water supply pipe 3, Figure 1, said neck having formed on its extremity a flange 4 Serial No. 170,758.

flattened at opposite sides, tor manuals. as to receive a suitable wrench indicated at 6 in Figure 2. Also the body includes an expanded bell shaped portion 7 sin-mounting the neck 2, the whole being stan'iped from sheet metal in a customary way. Exteriorly the body at its top edge, as viewed in Figures 3 and 41-, is provided with screw-threads 7 for a purpose to appear.

As indicated in Figures 1 and 2, lugs or tins 7 are formed in the wall of the body to extend therefrom in positions about as shown in said Figure 2, for example. The location of the fins forms a grip for the hand whereby the body may be adjusted upon the pipe 3 and also that the wrench applied to the flattened portions of the flange 4: may also engage one or more of said fins as suggested by broken lines in Figure 1.

Within the body is a portion which comprises a bell shaped stamping or shell 8 whose edge at its widest portion has an. annular flange 9 to rest upon the free edge of the body 1 as most clearly shown in Figure l, said stamping having a cylindrically formed portion 10 closed at its end as 11, there being ports 12 in the portion as shown in Figure 3.

Seated in said cylindrical portion in a snug working fit is a plug 13, constituting a valve which is cavitied, the upper end being" closed and shouldered at that end as at 14 and l'iaving a reduced head 15 grooved at 16 for example to receive a screw driver or similar tool. The plug provided with ports 17 adapted. to register with the ports 12, and it also has pors 18 opening into the space of the bell portion oi the shell or stamping. "'hen the W described parts are assen'ibled the shoulder 14; preferably extends beyond the plane of the top surface of the flange 9 of the stamping 8 as shown in Figure th- A diaphragm 19, Fig; ure 5, having a central aperture 20 lies upon said shoulder 14 and due to the position of the latter in the respect named is spaced slightly from the flange 9 as in said Figure 4;. The diaphrae'm, at positions about its central point, is provided with ports 21 created by partially severing the metal at those positions and forcing it out of the plane of the metal as in Figure (5, this, or"- course, being an old and well known procedure.

To complete the nozzle a cap 22 is now provided which has a central depressed portion 23 provided with an aperture 24. Also, the cap during its formation is furnished with a shoulder 25, interiorly, to engage upon the marginal edge of the iliaphragin l9 and includes an .iuteriorly threaded skirt portion 26 to screw upon the body 1, the same terminating in a flange 27 which is shaped to take a wrench whereliiy said 'ap may be firmly screwed in place. in serewingr the cap down to position the shoulder thereof engages upon the diaphragm, springing that memher and clamping its marginal edge upon the tlange S) ot" the shell or stampinn- 8. This action results in :ausiug the t'liaphragn'i to maintain constant; pr ssure upon the plug 13 holding the. latter firmly in it; seattogether with the fact that the plug will remain in. any position to which itmay be adjusted due to trictii'inal eng agci'uent of the parts, it. being understood that a suitable tool inserted through the aperture 2 ,1: of the cap may he used to adjust the plug by engaging; the slot or groove 16 of that member.

.ln ction, the water enters the noel; .7, passes through the ports 12 and 17 into the plug and out through the ports 18 thereo'l' into the cavity of the shell 8. in passing: through the ports ill of the diaphrag'iuv the water takes up a. whirling; motion due to the position of said ports and. finally issues 'l'rom the aperture ot the up in a t'iinnel-shaped spray.

Particularly where a number of spray nozzl as are used on a single pip i system as is In'acticed in some sections ot the country, the adjustment of the plug 13 provides for limiting); the tlow oil water from the nozzle 11 arrest the source o't pressure in said system, the plug of each succeedinc, nozzle as it lies farther tronl the source ot' pressure being le it slightly wider open until at the position farthest from the said source the ports are left wide open. This, it may be seen, provides to i an UYCII distribution of the water over the area being irrigated. its a matter oi" tact those nozzles lying most remote troin the pressure source may not include the shell 8 and the plug. but merely consist of the body 1, and the diaphragm 1t) and en 22. la the latter event. of course, the central opening;- 520 of the diaphragm would be lacking since not required to receive the head .1.5 of the plug.

1 claim 1. A. spray nozzle comprisi 11;: a hollow body. a shell portion therein including a seat, a hollow plug rota tahly mounted in. said seat. the shell ha ring; a portopcning' troni the eavity ot the body. and said phic; having a port to register with that of the shell. the bore of said plug cinuinuni:ating with the cavity ot the shell, a diaphragm seated in the shell closing its cavity and having ports therein and re. lug on the plug holding; it in its seat, and a tap provided with a ilischarg'e opening and engaging the body and dia ')hrag1n whereby to clamp the latter and the shell to the body.

9. A spray nozzle comprising ahollow body, a shell portion therein including a seat, a hollow plug rotatably mounted in said. seat,

the shell ha ring a port opening; troin the eavity of the body, 7 to register with that of the shell. the bore o't said plug); eoniniiunicating' with the aVity ot the shell, a d iaph ran'm iated in the shell closinn its cavity and havi, ports therein and resting on the plur; holding it in its seat, said ph'ig having an extension projecting through the diaphragm, and a Yap provided with a discharge opening opposite the ilug and screw threaded on the body eiigy'aqii'igr; the diapln'agrm wl erehy to clamp the said (ha pl] ragrn'i and the shell to said body.

3. A. spray nozzle comprising; a hollow liody tor attachment to a water supply pipe, a separate shell portion restine; on the body and suspended within the sanie and ha vino a eyliiulrical. at provided with a port. a cavitied plug rotatably mounted in said se it and having a port in it. well to register with that of the shell, said plug l einf); open to the -::a.'- ity of the shell distant :l roin the port and shouldered, a cap on aging the l';()( y and having a discluir 'e opeulntt aiul a diaphragm inclutlingports clau'iped between the shell and the cap and bearing upon the shoulder o t' the plug, the latter extend r above the shoulder thr-ruigzfh sa id .i:

l. in a spray nozzle. a

arate shell merein close i l l l the cavity \here- .ot but including a port, 2. cavitied rotatahle plug in said shell harin g'a port to re isterwith that ol the shell, the ca I, of the. said plug, opening into the avity ot the latter. said plug having a shoulder and an extension at its end mpposite that having the port, an apertured diaphragm having an opening to receive the extension resting upon said shoulde and a cap engag giue,- the hotly and having an outlet, said cap engaging the margin ot the diaphragm :lamping the sane and the :l

tell upon uaid body.

5. In a spray nozze. a hollow hody. a sepaate inner shell incl udine; a seat portion to receive a plug, st id portion having; a port but otherwise closed to the *a'\'ity of said body, said shell including a flange supported on the body, a caritied plug rotatable in said seat including a port adapted to register with the first named port, the "a *ity of the plug coin municatin g; with the :avity ot' the shell, an apertured diapln'aggnn adapted to lie its margin upon the :tlange ot the shell, said plug: eutendinni throj 'h the diaphragm and i-ihouldered ljieneath and adapted to receive the latter upon. it, and a cap engaging the body and clamping: the diaphragm a nd shell upon the same, said cap having adiscl arg'e opening disposed opposite the plug.

6. A spray nozzle including in its construction a shell portion open at one end and at its other end tern'iinating in a hollow cylindrical portion of relatively smaller diameter having an. aperture in its *all, a ct ritied plug seated at one end in said cylindrical portion,

and said pluc having; a portbeing rotatable therein and having a port in its wall to be brought into register with said aperture, said plug remote from its port being exposed within the shell portion, its cavity communicating with the space of said shell portion, a diaphragm closing the open end of the shell and having an opening therethrough, the plug extending through said opening closing the same and shouldered bencath the diaphragm to receive the latter upon it, and said diaphragm also having an opening therethrough communicating with the cavity of said shell.

7. A spray nozzle including in its construction a hollow body 01 drawn metal interiorly threaded one end and formed with a turned flange at that end flattened on its edges at two opposite positions adapted for receiving a wrench, said body being outwardly flared toward its other end and externally threaded, a shell of drawn metal depending within the body including a turned flange to rest upon the flared end of said body and including a cylindrical extension forming a seat, a cavitied rotatable plug fitting said seat. its cavity opening into the cavity of the shell, said plug and seat each. having a port adapted to register with one another, an apertured diaphragm seated on the shell and said plug, the latter extending through said diaphragm, and an apertured cap 01" drawn metal engaging the threads of the body adapted to engage the margin of said diaphragm whereby to clamp the latter and the flange oi the shell upon said body, said cap having a flange having flattened faces adapted to receive a wrench. V

8. A spray nozzle including in its construc tion. a hollow member having atone end a seat provided with a port,a cavitied plug rotatable in the seat having a port to register with that of said seat, the cavity of the plug communicating with the cavity of the member, said plug extending outside the plane of the member at one end, an apertured diaphragm engaging upon the plug and at its marginal edge adapted to bear on the said end of the member, a body and a part to screw on the body and engaging the diaphragm clamping the said marginal edge of the same and the member upon said body.

9. A spray nozzle including in its construction a hollow member having a seat in one portion thereof provided with a port, an apertured diaphragm whose marginal edge is adapted to lie upon a portion of the member spaced from said seat, a body receiving the member and diaphgram, means on the body to engage the diaphragm to clamp it and the member upon said body, and a cavitied plug interposed between the seat and the portion to which the diphragm is clamped and rotatable in said seat, the cavity of the plug communicatin g with the cavity of the member.

10. A spray nozzle including in its construction a cavitied body, a hollow member depending into the body and having a mar ginal portion to rest on the body and also having a seat in one portion thereof provided with a port, an apertured diaphragm whose marginal edge is adapted to lie upon the said marginal portion of the member and spaced from said seat, means on the body to engage the diaphragm for clamping it and the member together upon said body, and a cavitied plug interposed between the seat and the portion to which the diaphragm is clamped and rotatable in said seat, the cavity of the plug communicating with the cavity of the member, and said plug including a part extending through the diaphragm and fashioned to receive an operating tool.

11. A structure as part of a spray nozzle consisting of a shell open at one end and hav ing an outer marginal flange, said shell being contracted at its other end and formed into a cylinder, a tubular member fitting into and rotatable within said cylinder opening through the same, said member having an opening within the shell distant from the cylinder and shouldered, one of the parts being termed to prevent relative movement of the member other than a rotary one, anda diaphragm seated upon both the marginal flange and the shoulder of the member closing the cavity of said shell.

12. A structure as part of a spray nozzle consisting of a shell open at one end and having an outer i'narginal flange at that end, said shell being contracted at its other end and formed into a cylinder closed at its outer end, a tubular member seated at one end in the cylinder fitting the same and having a shoulder, there hein an opening through the cylinder wall, there also being an opening in the wall of said member adapted to register with that of the said cylinder, a perforated diaphragm seated on both the said marginal flange and the shoulder of the member, the latter extending through said. diaphragm, there being an opening in the wall of the member between the cylinder and the said dia phragm, the member extending through the latter outward from the said shoulder.

In testimony whereof I afiix my signature.

LEVJEN R. NELSON. 

